Dev Builds » 20200823-2127

Use this dev build

NCM plays each Stockfish dev build 20,000 times against Stockfish 7. This yields an approximate Elo difference and establishes confidence in the strength of the dev builds.

Summary

Host Duration Avg Base NPS Games Wins Losses Draws Elo
ncm-et-3 08:37:43 1961689 3332 2466 40 826 +321.26 +/- 11.84
ncm-et-4 08:37:11 1961746 3337 2463 47 827 +318.25 +/- 11.84
ncm-et-9 08:36:57 1966950 3334 2476 37 821 +323.83 +/- 11.87
ncm-et-10 08:37:38 1959081 3315 2485 34 796 +329.74 +/- 12.06
ncm-et-13 08:37:04 1961427 3340 2466 42 832 +319.53 +/- 11.8
ncm-et-15 08:36:56 1965398 3342 2466 38 838 +320.09 +/- 11.75
20000 14822 238 4940 +322.08 +/- 4.84

Test Detail

ID Host Started (UTC) Duration Base NPS Games Wins Losses Draws Elo CLI PGN
135919 ncm-et-10 2020-08-24 08:20 00:48:44 1959258 315 231 2 82 +320.44 +/- 37.78
135918 ncm-et-3 2020-08-24 08:17 00:51:26 1962764 332 243 3 86 +317.44 +/- 36.94
135917 ncm-et-13 2020-08-24 08:17 00:51:39 1964149 340 256 3 81 +333.41 +/- 38.15
135916 ncm-et-15 2020-08-24 08:17 00:51:46 1963532 342 240 6 96 +290.8 +/- 34.98
135915 ncm-et-9 2020-08-24 08:16 00:52:12 1966307 334 249 2 83 +329.86 +/- 37.58
135914 ncm-et-4 2020-08-24 08:16 00:52:56 1960197 337 252 3 82 +329.37 +/- 37.9
135913 ncm-et-10 2020-08-24 07:01 01:17:31 1960619 500 384 6 110 +342.85 +/- 32.71
135912 ncm-et-3 2020-08-24 06:59 01:16:49 1960154 500 360 11 129 +299.97 +/- 30.16
135911 ncm-et-15 2020-08-24 06:58 01:17:25 1969257 500 357 6 137 +302.7 +/- 29.16
135910 ncm-et-9 2020-08-24 06:58 01:17:54 1967231 500 372 6 122 +324.17 +/- 31.0
135909 ncm-et-13 2020-08-24 06:56 01:19:52 1961074 500 375 5 120 +330.23 +/- 31.24
135908 ncm-et-4 2020-08-24 06:54 01:20:14 1928411 500 379 7 114 +333.32 +/- 32.12
135907 ncm-et-10 2020-08-24 05:42 01:18:19 1948741 500 357 8 135 +299.97 +/- 29.44
135906 ncm-et-15 2020-08-24 05:41 01:16:53 1970796 500 372 8 120 +321.19 +/- 31.29
135905 ncm-et-3 2020-08-24 05:40 01:17:52 1959847 500 367 4 129 +319.72 +/- 30.05
135904 ncm-et-9 2020-08-24 05:40 01:16:55 1966150 500 380 8 112 +333.32 +/- 32.42
135903 ncm-et-13 2020-08-24 05:39 01:16:17 1963227 500 359 11 130 +298.62 +/- 30.04
135902 ncm-et-4 2020-08-24 05:37 01:16:18 1970169 500 372 6 122 +324.17 +/- 31.0
135901 ncm-et-10 2020-08-24 04:24 01:16:42 1967077 500 381 5 114 +339.63 +/- 32.09
135900 ncm-et-15 2020-08-24 04:24 01:15:54 1963534 500 394 4 102 +363.2 +/- 33.99
135899 ncm-et-3 2020-08-24 04:22 01:17:10 1962458 500 366 5 129 +316.8 +/- 30.08
135898 ncm-et-13 2020-08-24 04:21 01:16:22 1959236 500 360 6 134 +306.84 +/- 29.51
135897 ncm-et-9 2020-08-24 04:19 01:19:22 1963080 500 368 8 124 +315.35 +/- 30.77
135896 ncm-et-4 2020-08-24 04:19 01:16:55 1971417 500 349 8 143 +289.36 +/- 28.56
135895 ncm-et-10 2020-08-24 03:04 01:19:25 1957097 500 377 6 117 +331.77 +/- 31.68
135894 ncm-et-15 2020-08-24 03:03 01:19:16 1957263 500 377 8 115 +328.7 +/- 31.98
135893 ncm-et-13 2020-08-24 03:02 01:17:49 1961995 500 366 8 126 +312.48 +/- 30.51
135892 ncm-et-3 2020-08-24 03:02 01:18:59 1962763 500 384 4 112 +346.12 +/- 32.37
135891 ncm-et-9 2020-08-24 03:02 01:16:25 1967387 500 366 4 130 +318.25 +/- 29.92
135890 ncm-et-4 2020-08-24 03:01 01:17:26 1963539 500 376 12 112 +321.19 +/- 32.38
135889 ncm-et-13 2020-08-24 01:46 01:15:17 1961690 500 370 6 124 +321.19 +/- 30.74
135888 ncm-et-3 2020-08-24 01:45 01:16:35 1962154 500 362 7 131 +308.24 +/- 29.88
135887 ncm-et-15 2020-08-24 01:44 01:17:43 1968165 500 365 2 133 +319.72 +/- 29.47
135886 ncm-et-10 2020-08-24 01:44 01:18:20 1962305 500 369 3 128 +324.17 +/- 30.13
135885 ncm-et-9 2020-08-24 01:43 01:17:58 1967865 500 371 2 127 +328.7 +/- 30.21
135884 ncm-et-4 2020-08-24 01:42 01:17:05 1968625 500 364 6 130 +312.48 +/- 29.98
135883 ncm-et-15 2020-08-24 00:25 01:17:59 1965242 500 361 4 135 +311.06 +/- 29.33
135882 ncm-et-9 2020-08-24 00:25 01:16:11 1970633 500 370 7 123 +319.72 +/- 30.88
135881 ncm-et-13 2020-08-24 00:25 01:19:48 1958622 500 380 3 117 +341.24 +/- 31.6
135880 ncm-et-4 2020-08-24 00:25 01:16:17 1969866 500 371 5 124 +324.17 +/- 30.71
135879 ncm-et-10 2020-08-24 00:25 01:18:37 1958473 500 386 4 110 +349.43 +/- 32.67
135878 ncm-et-3 2020-08-24 00:25 01:18:52 1961688 500 384 6 110 +342.85 +/- 32.71

Commit

Commit ID d5f86b63597fdb25b8c670e42ca468c99ca95a74
Author Vizvezdenec
Date 2020-08-23 21:27:03 UTC
Introduce movecount pruning for qsearch() If in quiescence search, we assume that me can prune late moves when: a) the move ordering count of the move is : moveCount > abs(depth) + 2 b) we are not in check c) the late move does not give check d) the late move is not an advanced pawn push Modification of an original idea by @VoyagerOne. STC https://tests.stockfishchess.org/tests/view/5f40581787a5c3c63d8f535f LLR: 2.96 (-2.94,2.94) {-0.25,1.25} Total: 132848 W: 14999 L: 14661 D: 103188 Ptnml(0-2): 684, 11242, 42309, 11430, 759 LTC https://tests.stockfishchess.org/tests/view/5f4226da87a5c3c63d8f5412 LLR: 2.98 (-2.94,2.94) {0.25,1.25} Total: 12008 W: 678 L: 551 D: 10779 Ptnml(0-2): 8, 485, 4899, 596, 16 closes https://github.com/official-stockfish/Stockfish/pull/3053 Bench: 3749974
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